baber/WOPTO huggingface dataset:
Patent GB-555737-A (GB)
Title: An improved method of and apparatus for regulating the draft in a steam generator
IPC: F23L17/00
Filed: 1942-03-02
Abstract: 555,737. Regulating draught. McINTOSH, R. R. March 2, 1942, No. 2731. Convention date, March 1, 1941. [Class 51 (i)] The draught in a locomotive smoke box is regulated by admitting air automatically thereto when the suction pressure therein exceeds a predetermined value, the air admission being stopped when it is desired to raise the suction pressure to a higher level for higher rates of fuel consumption. As shown in Fig. 5, a locomotive smoke box 1 is provided with air inlets 31, 40 having valves 18 loaded by counterweights 24 which are such that the valve in the inlet 40 opens at low suction pressures and low rates of fuel consumption to check the draught while the valve in the inlet 31 opens at high suction pressures and at high rates of fuel consumption. Instead of disc valves 18 hinged valves may be employed and instead of counterweights, springs may be employed to load the valves. The inlet 40 is provided with louvre valves 42, Figs. 5 and 10, which are actuated by fluid pressure acting on a piston 53, the rod of which actuates the louvres against the action of a spring 52. The fluid pressure may be that driving a mechanical stoker so that at high fuel consumption rates the steam pressure closes the louvres and the suction pressure in the smoke box increases and is maintained at a predetermined higher level and under the control of air admitted by the inlet 13. Where oil fuel is employed the fluid pressure supply to the piston 53 is controlled simultaneously with the oil supply. Instead of a single acting piston acting against a spring for operating the louvre valves 42, a double acting piston may be employed. The smokebox may be provided with partitions 9a, 84 separating the gases passing through the upper and lower smoke tubes of the boiler, the partition 9a having screens 77, 78 and adjustable plates 79, 80. A pipe extending from a point adjacent the lower end of the stack to the base of the smokebox is employed for the removal of deposits at the base of the smokebox.
Patent GB-616543-A (GB)
Title: Improvements in spring plate valves
IPC: F16K15/16
Filed: 1946-01-28
Abstract: 616,543. Check valves. AKTIEBOLAGET GOTAVERKEN. Jan. 28, 1946, No. 2773. Convention date, Feb. 16, 1945. [Class 135] A spring plate valve comprises a seat plate 1, Figs. 1, 3, and a plate 4 spaced apart by distance-pieces 3, and a steel &c. valve member having an arm 6 coacting with the seat plate to control an opening 2 therein and an arm 7 fixed or clamped to the plate 4 at a point beyond the end of the valve opening 2. The plate 1 has a plurality of openings 2 with which co-operate a corresponding number of valve members, and the plate 4 has openings spaced laterally from the openings 2. When the valve members are fully open, both arms 6 and 7 lie parallel to the plate 4 and a groove 9 in this plate accommodates an eye 8 at the bend of the valve member. The ends of the arms 7 of the valve members are clamped in slots in the distance-piece 3 and are located by pins passing through holes in the arms 7 and in the plate 4. The valve members may be as shown in Fig. 5, being clamped at the middle portion 12, in which case each of the openings 2 is divided into two parts. Valve members of the form shown in Fig. 1 may be arranged alternately on opposite sides of a central distancepiece 14 by which they are clamped.
Patent GB-138363-A (GB)
Title: Improvements in or relating to speed control arrangements for dynamo electric machinery
IPC: H02H7/06
Filed: 1920-01-29
Abstract: 138,363. Siemens - Schuckertwerke. July 3, 1917, [Convention date]. Dynamos, stopping automatically; auxiliary protective devices.-To avoid undue increases of speed when, owing to an overload in the system, the main or overload switch acts, the supply of energy to the generator is shut off before the opening of the main switch and simultaneously the exciting energy of the generator is reduced. The generator b may be driven by a steam turbine a, the field winding being supplied from the continuous-current system d through the regulator c. The quick-closing valve f is operated by the latch-device g of a centrifugal governor h. In starting the set, the by-pass valve l adjacent to the main-valve i is opened and, when full speed is reached, the main switch m is closed. A switch n is coupled to the main switch, and when closed brings into action one exciting winding p of a repulsion motor o and the latter opens the valve i. When the main valve is completely open, the end switch u opens and the by-pass valve l may be closed by hand or automatically. If an overload occurs, it flows through both the overload release x of the main switch and a second more rapid relay y. This relay raises the contact plate z and brings the other exciting winding q of the motor o into action to close the valve i, and open the end switch v. At the same time, a circuit 1, 2 may actuate a motor 3 to insert the regulating resistance e, or other additional resistance may be inserted in the exciting circuit.
Patent GB-291488-A (GB)
Title: Improvements in weighing apparatus
IPC: G01G23/08
Filed: 1927-02-01
Abstract: 291,488. Wollaston, H. J. Buchanan-. Feb. 1, 1927. Pendulum - weight apparatus; vibration, preventing and neutralizing.-Means for damping the oscillations of balances having one or more hanging weigh-pans comprise. members depending from the pin-carrying frames of the balance and immersed in oil or other fluid contained in baths or other containers, the arrangement being such that the weigh-pans do not hang above the containers. The invention is stated to be particularly applicable to the weighing-scales described in Specifications 234,935, 244,320 and 257,698. As shown, the balance comprises a weigh-beam A attached to a roller B supported on horizontal bearing surfaces C. A weigh-pan D is suspended from one end off the beam and supports by a fine cord H a lead tube J that is immersed in oil in a bath E. The other end L of the beam is provided with a stud M from which is suspended a box K that contains lead shot and acts both as a pendulous resistant and as a damping device. Baffle plates are provided in the container E to prevent undue disturbance of the oil.
Patent GB-898001-A (GB)
Title: Therapeutic injectable iron preparations
Inventor: SJOGREN BERTIL KARL FREDRIK
IPC: A61K31/295
Filed: 1958-01-28
Abstract: An injectable pharmaceutical preparation in unit dosage form stated to act prophylactically and curatively against a variety of pathological conditions, e.g. infection with pathogenic organisms, asthma, allergic conditions and exposure to harmful radiation, comprises a sterile colloidal solution in a physiologically innocuous aqueous medium of an iron-dextrin complex in an amount per unit dose corresponding to 0.2 to 10 mg. of iron and an iron concentration of 0.05 to 15 mg/litre.
Patent GB-721761-A (GB)
Title: Improvements relating to trench digging equipment
Inventor: PACKMAN PERCIVAL JAMES
IPC: E02F9/02
Filed: 1952-02-04
Abstract: 721,761. Temporary roads. PACKMAN MACHINERY, Ltd. April 27, 1953 [Feb. 4, 1952], No. 2908/52. Class 107. [Also in Group XXI] Pivotally-connected sections 18 of temporary track are provided for a tractor to move on.
Patent GB-383810-A (GB)
Title: Improvements in or relating to riveting apparatus
IPC: B21J15/30
Filed: 1932-02-01
Abstract: 383,810. Setting tubular rivets. BIFURCATED & TUBULAR RIVET CO., Ltd., 235, Upper Thames Street, London, and PATERSON, L. M., Foxhill, Wendover Road, Aylesbury, Buckinghamshire. Feb. 1,. 1932, No. 2969. [Class 43.] The lower tool or anvil of a riveting machinecomprises an outer portion h and an inner axially movable portion a, the member a being supported by a pivoted plate e whose movement is arrested by an adjustable stop f. The member a bears on the plate e either directly or through a pivoted lever k and enters the rivet hole to locate the work and is lowered during the operation to co-operate with the outer portion h and form part of the anvil. The stop f bears at its inner position against an adjustable screwed stop c<6> and is normally urged outwardly by a spring c<4>. The anvil h may comprise a renewable hardened steel insert. The arm d may be raised or lowered by a screw s and is secured in adjusted position by bolts d<4>.
Patent GB-771703-A (GB)
Title: Ring hook for ski boots or the like footwear
Inventor: BASO LORIS
IPC: A44B13/00
Filed: 1955-02-01
Abstract: 771,703. Ski and other boots. TOBA SOC. R. L. Feb. 1, 1955, No. 3018/55. Classes 17 (2) and 43. A ring 1 for a ski-boot or like footwear is pivotally carried by a plate 2 by which and a soft metal rivet driven into a hole 6 thereinto it may be attached to the boot. Tie strings are passed through the triangular shaped ring.
Patent GB-214025-A (GB)
Title: Improvements relating to advertising, demonstrating or display devices
IPC: G09F13/24
Filed: 1923-02-03
Abstract: 214,025. Radiation, Ltd., Yates, H. J., and Rose, C. S. Feb. 3, 1923. Elements moving always in one plane, rotating. -A device for representing the circulation or movement of water in a domestic or other hot water supply system comprises a picture of the system, a, b, c, d, e, e', e<2>, a part or the whole of which is transparent, and a rotary disc g bearing alternately transparent and opaque or differently coloured portions h, i, j, k. The disc is mounted behind the picture and when rotated with rear illumination an appearance of water moving in pipes in different phases and raising and lowering of gas flames is given to the picture.
Patent GB-414721-A (GB)
Title: Improvements in apparatus for automatically indicating and controlling or regulatingthe humidity or degree of moisture in the atmosphere of rooms or enclosed spaces
IPC: G01N25/62
Filed: 1933-02-03
Abstract: 414,721. Moistening air. BALDWIN & CO., Ltd., J., and BROADBENT, G. W., Devonshire Brass Works, Keighley, Yorkshire. Feb. 3, 1933, No. 3287. Drawings to Specification. [Class 55 (ii).] A wet and dry bulb thermometer is used in combination with a differential piston and valve for controlling automatically the humidity of an enclosed space. The apparatus may be used to control the supply of dry heated air to the enclosed space if it be desired to reduce the degree of moisture in the atmosphere.
Patent GB-1077710-A (GB)
Title: Compositions for the consolidtion of soils
IPC: C04B28/26
Filed: 1966-01-25
Abstract: A composition for use in the consolidation of soil comprises a mixture of (a) an aqueous solution of an alkali metal silicate, (b) an aqueous solution containing the product of reaction in the presence of a basic catalyst between acrylamide and formaldehyde, (c) a catalyst for the polymerization of the acrylic constituents of (b) and (d) a gelling reagent (defined).  The gelling reagent acts upon the alkali metal silicate and is, for example, triacetin, sodium bicarbonate or ethyl acetate. The catalyst (c) is a conventional free-radical polymerization catalyst and an activator may also be present.  The composition is applied to the soil before substantial polymerization of (b) takes place.
Patent GB-284709-A (GB)
Title: Improvements in or relating to route indicators for vehicles
IPC: G01C22/00
Filed: 1928-02-02
Abstract: 284,709. Dufils, R. Feb. 4, 1927, [Convention date]. Moving-map indicators for vehicles.-A moving- map indicator for use on vehicles is wound from a drum 21 on to a drum 22 and is fed by a roller 15 driven through reduction gearing from a pinion 4 rotated at a speed proportional to that of the vehicle by a flexible shaft. The map is gripped between the roller 15 and the smoother surface of the glass 16 of the containing box 17, the roller 15 being mounted in a hinged bracket 18 pressed towards the glass by a spring 20, the pressure of which may be varied by a screw 20k. A lamp is mounted in an adjustable reflector 45. A belt 23, which slips when the resistance is excessive, connects pulleys on the spindles of the feed roller 15 and the winding drum 22. The drums 21, 22 may be moved by hand by heads 25 on their spindles 26, the mechanical drive being first automatically disengaged. For this purpose, cones 80 are provided on the spindles 26 so that when the latter are displaced longitudinally the cones engage holes 31 in a member 32 which thereupon slides and by means of its forked end 32b disengages a. dog-toothed gear sleeve 36 from the pinion 6 in mesh with the pinion 4. A further movement of the spindles 26 engages polygonal members 27 in recesses 29 in the drum ends, so that the drums may now be rotated by the heads 25. In a modification, the spindles 26 carry collars which move the bar 32 transversely to its length against spring pressure, keys being provided to hold the spindles in position for handturning. Errors in the feed of the map due, for example, to tyre wear, may be corrected by including in the reduction gearing a friction drive comprising two discs 47, 48 at right angles to one another, the disc 48 being adjustable radially across the face of the disc 47 by screwing a spindle 37 further into its support 50, the spindle 37 carrying a stirrup 51 fastened to the disc 48.
Patent GB-1115695-A (GB)
Title: Manufacture of ferromanganese alloy
Inventor: KEYSER NAAMAN HENRY
IPC: C21C7/00
Filed: 1966-01-25
Abstract: Low to medium carbon ferromanganese is made by mixing a molten manganese alloy with a high manganese slag in a basic lined vessel, removing the slag, blowing the alloy while adding manganese ore and lime to form ferromanganese having a greater manganese content and a lower silicon content than the original alloy together with a high manganese slag which is then removed from the alloy product.  The gas used for blowing may be oxidizing (e.g. oxygen) or if sufficient oxygen is added as the ore it may be an inert gas for the purpose of stirring only.  During the mixing step the mixture is preferably transferred more than once between two ladles.
Patent GB-677968-A (GB)
Title: Improvements in containers
IPC: A47J45/06
Filed: 1951-02-13
Abstract: 677,968. Buckets. STOKES MOLDED PRODUCTS, Inc. Feb. 13, 1951 [June 8, 1950], No. 3449/51. Class 66 In a container having a bail handle, bearings are permanently fixed to each end of the handle and the body of the container is moulded around the bearings. Figs. 2 and 3 show two alternative arrangements, the handle 14 being permanently and rotatably mounted in the bearing 20 which is moulded within the body 10 of the container which may be of hard rubber. As shown in Fig. 4, the container may comprise a moulded hand-grip 22 and a moulded spout 11 to facilitate pouring of the contents.
Patent GB-651832-A (GB)
Title: Process for preparing dihydrostreptomycin and acid salts thereof
IPC: C07H15/238
Filed: 1947-02-06
Abstract: Dihydrostreptomycin and its salts are manufactured by treating a salt of streptomycin with hydrogen in the presence of a hydrogenation catalyst, and, if desired, treating the resulting dihydrostreptomycin salt with the stoichiometric equivalent of a base which forms with the acid component of the salt an insoluble compound, which is removed by filtration and free dihydrostreptomycin recovered from the filtrate (e.g. by precipitation with an organic solvent or by freeze-drying, the latter being applicable to the recovery of the dihydrostreptomycin salt after removal of the catalyst by filtration).  The products retain the antibiotic properties of the parent materials but possess greater stability.  The starting materials may be impure concentrates of streptomycin salts, but it is preferable to use a substantially pure salt, the acid component being one which either resists reduction, or, if reduced, does not react with or prevent reduction of streptomycin, e.g. mineral acid salts or salts of organic acids which contain no reducible p  group other than C=C bonds.  In examples: (1) and (2) an aqueous suspension of platinum oxide is reduced with hydrogen, after which streptomycin hydrochloride is added and the mixture is agitated in an atmosphere of hydrogen to produce dihydrostreptomysin hydrochloride, which may be converted to the helianthate by the action of methyl orange in aqueous methanol; (3) streptomycin sulphate is hydrogenated as in (1) (except that the platinum oxide is not pre-reduced); (4) the platinum oxide in (1) is replaced by palladium metal; (5) an aqueous solution of dihydrostreptomycin sulphate is treated with barium hydroxide solution, the product is filtered, and dihydrostreptomycin is precipitated from the filtrate by adding acetones.
Patent GB-575545-A (GB)
Title: Process for reclaiming scrap containing vulcanized copolymers of butadiene-1,3 and monovinyl compounds
IPC: C08J11/28
Filed: 1944-02-25
Abstract: Scrap containing vulcanized copolymers of butadiene-1,3 and a monovinyl compound, such as styrene, alkyl styrene, acrylic nitrile or alkylacrylic nitrile is reclaimed by heating it under pressure while in a subdivided state with preferably 0.02 to 6 per cent of a di-(hydroxyaryl) sulphide, which may be a mono-, di- or polysulphide. Preferred compounds are di-(hydroxyphenyl) mono- and di-sulphides, di-cresyl mono-, di- and poly - sulphides, di-(hydroxy - naphthyl) disulphide, di - (butyl - hydroxyphenyl) mono- and di-sulphides, bis-(dimethyl hydroxyphenyl) disulphide hydroxyphenylcresyl monosulphide and cresyl dimethyl hydroxyphenyldisulphide.  These may be added as a gas, or vapour, or as a liquid or solid, or in suspension or solution in water or in organic solvents or mixed with oils such as pine or rosin oil. If the scrap contains fibre, then caustic soda, zinc chloride or other cellulose destroying agent may also be added.  The process is preferably carried out at a temperature of 300-420 DEG  F. till the product has a viscosity measured on the Mooney shearing disc plastometer of 80-180 at 180 DEG F.
Patent GB-1045545-A (GB)
Title: Improvements in or relating to alumina extraction processes
Inventor: PORTER JOHN LEMOYNE
IPC: C01F7/066
Filed: 1964-01-28
Abstract: In a Bayer process for extraction of alumina from bauxite, "process carbonation" or the build up of Na2CO3 is controlled by adding lime to the wet red mud in the countercurrent mud washers, the washer effluent being added to the pregnant digestion liquors.  The countercurrent washing system may have a plurality of stages and lime may be added as a slurry at any of the earlier stages.  By maintaining a high proportion of NaOH in the washing liquors, the tendency for alumina to deposit in the washers is reduced.  The process may also have an independent "causticizer" to add fresh NaOH to the system before the recirculated liquors pass to the digester. The drawing (not shown) illustrates a plant having a 5-stage Dorr type countercurrent mud washer where lime may be added at any of the first 4 stages.
Patent GB-1055233-A (GB)
Title: Hydrogenation of oligomers
Inventor: KRONIG WALTER
IPC: C07C5/03
Filed: 1964-01-28
Abstract: Paraffins are prepared by hydrogenating olefinic oligomers of propylene and/or butylenes having 6 to 16 C atoms in the trickle phase in a practically stationary H2 atmosphere under 10-100 atmospheres pressure and at 80-250 DEG  C. in the presence of platinum and/or palladium metal deposited on a carrier which contains no free inorganic acid or acid salt thereof.  Specified catalyst carriers are alumina and calcium carbonate.  The hydrogenation is preferably carried out in a tube reactor.  In examples diisobutene, tri-isobutylene and tetra-isobutene are hydrogenated.
Patent GB-595422-A (GB)
Title: Photographic objectives corrected spherically, astigmatically and for coma for one or more colours
IPC: G02B9/34
Filed: 1945-02-14
Abstract: 595,422. Photographic objectives. KERN & CO., Ltd. Feb. 14, 1945, No. 3648. Convention date, March 13, 1944. [Class 97 (i)] An objective corrected for spherical aberration, astigmatism and coma for one or more colours comprises as shown converging lenses L1, L2, a diverging doublet made up of lenses L3, L4 and a converging lens L5, the components being air separated and the lens L3 being a converging lens with a refractive index of at least 1.72 and an AbbÚ number greater by at least 4.0 than that of the diverging lens L4. The curvature of the cemented surface of the doublet is greater than that of its front surface, while the difference in the refractive indices of the lenses L2, L4 may be at least 0.07 ; the lens L4 may have a refractive index greater than that of the lens L2 but less than 1.70. One of the converging components, e.g. the second component L2, may be a doublet comprises lenses, the refractive indices of which differ by not more than 0.01 ; the front lens of this doublet may be diverging and may have a smaller AbbÚ number than the rear converging lens of the doublet. Optical data for one example are given.
Patent GB-549225-A (GB)
Title: Improvements relating to the manufacture of felt
IPC: D04H13/00
Filed: 1942-03-20
Abstract: 549,225. Felt. ASHWORTH, J. R. March 20, 1942, No. 3701. [Class 42 (ii)] In a needled felt comprising a sheet of felt and a length of hessian or other cloth to which the felt is needled the surface which displays a small proportion of felt protruding through the hessian is subjected to a raising operation which raises the surface of both the felt and the hessian to produce a surface of attractive appearance. The hessian may be woven to any pattern or design or may be printed or dyed to any desired pattern. The felt may be formed of jute, wool, hair or cotton or of any combination thereof and may be dyed as desired. The felt may be milled or hardened and may be coated with rubber or rubber substitute.
Patent GB-1520152-A (GB)
Title: Locking devices
IPC: E05B67/00
Filed: 1977-01-31
Abstract: 1520152 Vehicle locks HENRY SQUIRE & SONS 31 Jan 1977 [31 Jan 1976] 03881/76 Heading B7J A device including a key operable locking mechanism which releasably receives the end 5 of an elongate flexible element in an opening, the element having spring means 14 which bears against part of the lock body when the element is inserted to be held by the locking mechanism in a stressed condition so that the element is positively ejected when released.
Patent GB-324818-A (GB)
Title: Improvements in and relating to mechanism used for the transfer of road vehicles on to and from railway vehicles
IPC: B61J1/10
Filed: 1929-02-05
Abstract: 324,818. Bredin, E. C. Feb. 5, 1929. Addition to 308,008. Vehicle fittings.-Means for transferring a road vehicle 19 to or from a railway vehicle A comprises a wheeled trolly, Figs. 1 and 2, provided with platforms 4, 5 arranged as required for supporting the wheels of the road vehicle, with ramps 6, and with attachments 17 for connecting a haulage rope &c. The trolly is moved on rails to or from the railway vehicle. The rails 11 on the loading bank may be portable or fixed, and portable rails may be in sections coupled end to end and set with the aid of a gauging bar. Rails 14 are provided on the railway vehicle or on a platform thereon, and portable bridging rails 22 fit in the ends of the rails 11, 14 with freedom to pivot vertically. Wheel stops are provided upon the rails 11, 14. The portable rails, bridging rails, gauge rods, and wheel stops are carried on the railway vehicle. The transfer trolly is secured upon the railway vehicle by a bracket 7 engaging a stop 15. Pins 21 passed through the stop 15 engage slots in the bracket 7 so that the trolly is held against movement laterally, longitudinally, and vertically. The transfer trolly is fitted with buffers 8 to receive the road vehicle. The wheels 2, 3 may be spring-mounted and one or more may be provided with screw, lever, toggle or other adjustment for lowering the frame. As shown, the single wheel 3 is mounted on a pivoted arm 10 and is adjustable vertically by a hand-screw so that the ramps 6 may rest upon the rails, either for running the road vehicle on and off, or for greater rigidity in transit. One or more of the trolly wheels may be fitted with a brake. Pulleys 18 are fitted on the railway vehicle for the haulage rope, which may be connected to a motor-tractor.